McCain’s family announced in a statement the day before he passed away that the Arizona senator would discontinue medical treatment for his cancer.

Huckabee said Saturday that after McCain beat him for the 2008 Republican presidential nomination, he was happy to endorse him and campaign "vigorously" with him.

Sen McCain was a courageous warrior who served and suffered for the freedom we all enjoy. I lost the GOP nomination to him in 2008 but we never once had a cross word. After he beat me I campaigned vigorously for him. No regrets. My heart goes out to His family.

"I never had a regret about that," he said. "I found him to be an incredibly gracious and grateful person for this country."

Huckabee told Judge Jeanine Pirro of a time on the 2008 campaign trail when McCain -- who was deeply interested in cooking -- had to be asked to leave a Little Rock, Arkansas, barbecue restaurant in order to continue campaigning for the presidency.

"He was also a human being who loved just to be able to cook for his friends and his family, and it gave a side of John McCain that a lot of people probably never had the chance to see," Huckabee said.

McCain was someone who was well-studied and astute to current issues facing the country, Huckabee added.

My heart is broken. I am so lucky to have lived the adventure of loving this incredible man for 38 years. He passed the way he lived, on his own terms, surrounded by the people he loved, in the the place he loved best.

Mark Levin said Thursday on "Hannity" that former FBI officials should be subject to the "Donald Trump treatment," with a grand jury hearing testimony from the "whole cabal" and a new special counsel overseeing an investigation.